Root rot disease incidence and severity on some legume species grown in Samsun and the fungi isolated from roots and soils

Erper, İsmail; Karaca, Gürsel; Özkoç, İbrahim

doi:10.1080/03235400600833779

Cited by 8 publications

(5 citation statements)

References 11 publications

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“…were the most frequently isolated fungi in a study in Rwanda and Uganda (Rusuku et al, 1997;Mukankusi et al, 2010), also finding Macrophomina phaseolina, R. solani, and Fusarium oxysporum. Several studies have reported a higher prevalence of some pathogens inside a complex; for example, Iran, Kenya and Turkey, F. solani predominated over R. solani and M. phaseolina (Erper et al, 2007;Mwang'ombe et al, 2007;Naseri, 2008), while in Michigan (United States), Fusarium presented the highest prevalence, followed by Rhizoctonia. Additionally, they concluded that the composition of the bean root rot pathogens appears not to depend on the year or the country, because the three main groups of pathogens were consistently recovered (Jacobs et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Genetic Analyses and Genomic Predictions of Root Rot Resistance in Common Bean Across Trials and Populations

et al. 2021

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Root rot in common bean is a disease that causes serious damage to grain production, particularly in the upland areas of Eastern and Central Africa where significant losses occur in susceptible bean varieties. Pythium spp. and Fusarium spp. are among the soil pathogens causing the disease. In this study, a panel of 228 lines, named RR for root rot disease, was developed and evaluated in the greenhouse for Pythium myriotylum and in a root rot naturally infected field trial for plant vigor, number of plants germinated, and seed weight. The results showed positive and significant correlations between greenhouse and field evaluations, as well as high heritability (0.71–0.94) of evaluated traits. In GWAS analysis no consistent significant marker trait associations for root rot disease traits were observed, indicating the absence of major resistance genes. However, genomic prediction accuracy was found to be high for Pythium, plant vigor and related traits. In addition, good predictions of field phenotypes were obtained using the greenhouse derived data as a training population and vice versa. Genomic predictions were evaluated across and within further published data sets on root rots in other panels. Pythium and Fusarium evaluations carried out in Uganda on the Andean Diversity Panel showed good predictive ability for the root rot response in the RR panel. Genomic prediction is shown to be a promising method to estimate tolerance to Pythium, Fusarium and root rot related traits, indicating a quantitative resistance mechanism. Quantitative analyses could be applied to other disease-related traits to capture more genetic diversity with genetic models.

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Section: Introductionmentioning

confidence: 99%

Genetic Analyses and Genomic Predictions of Root Rot Resistance in Common Bean Across Trials and Populations

et al. 2021

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“…Soil-borne diseases are major crops yield-limiting factors threatening food security worldwide ( Erper et al., 2008 ). Fungal plant pathogens like Pythium spp., Rhizoctonia solani , Thielaviopsis basicola , Verticillium spp., Sclerotinia spp., Phytophthora spp.…”

Section: Introductionmentioning

confidence: 99%

“…and Fusarium spp., have been cited as causative agents ( Abawi and Pastor-Corrales, 1990 ). They may each infect independently the host causing characteristic symptoms, or in complexes, resulting in more severe cases ( Erper et al., 2008 ). Among soil borne diseases, Fusarium root rot (FRR), caused by the fungus Fusarium solani f. sp.…”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi alter antifungal potential of lemongrass essential oil against Fusarium solani, causing root rot in common bean (Phaseolus vulgaris L.)

Eke

Adamou

Fokom

et al. 2020

Heliyon

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The variation in chemical composition of essential oils (EOs) as affected by plant phenology and environmental factors is a crucial limitation in standardization of EOs and thus their effective implementation into novel organic farming. The cultivation of medicinal and aromatic plants (MAP) using bio-elicitors has been advocated as genuine tool to sustainably assure higher quantity and quality EOs. Herein, a field trial and laboratory bioassays were undergone to decipher the impact of a local arbuscular mycorrhizal fungi (AMF) inoculation on agro-morphological yield, EO output and differential suppression of common bean ( Phaseolus vulgaris L.) root rot incited by Fusarium solani. The field experiment was laid out following a completely randomized block design (CRBD) with two treatments; non-inoculated control and AMF-inoculation in triplicates. The effects of the EOs were tested against mycelial growth, conidia and common bean seeds germination. Promising concentrations were thereafter assessed for their suppressive effect against Fusariun solani in planta . A significantly higher collar diameter, hypocotyl branching and subsequent Mycorrhizal Dependency (MD) in mycorrhizal lemongrass [(+)AMF] compared to non-inoculated counterpart [(-)AMF]. The resulting EOs consistently repressed F. solani Fs4 conidia germination and mycelium deployment in a dose-dependent manner, with minimum inhibitory concentration (MIC) of 500 ppm for both the EOs, and 125 ppm for the reference fungicide (Ridomil Plus 44 WP). The EO from mycorrhizal lemongrass protected the common bean plantlets from infection by F. solani Fs4 both in laboratory and greenhouse conditions, leading to healthier and vigorous plantlets. The best protection rate was once more obtained with EO from AMF-primed lemongrass at the concentration of 1000 ppm (65.0%) while the lowest disease severity was obtained with Ridomil Plus 44 WP (63.13%). Overall, AMF inoculation shifted the lemongrass biochemical processes with subsequent impact on growth, and an enhanced suppression in Fusarium root rot under greenhouse conditions.

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“…Rhizoctonia solani and Pythium spp. have also been reported to occur in association with Fusarium root rot of faba bean (Sepu´lveda 1991;Erper et al 2008). The fungi Cylindrocladium floridanum Sob.…”

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confidence: 99%

Effects of seed treatments and inoculum density of Fusarium avenaceum and Rhizoctonia solani on seedling blight and root rot of faba bean

et al. 2014

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Chang, K. F., Conner, R. L., Hwang, S. F., Ahmed, H. U., McLaren, D. L., Gossen, B. D. and Turnbull, G. D. 2014. Effects of seed treatments and inoculum density of Fusarium avenaceum and Rhizoctonia solani on seedling blight and root rot of faba bean. Can. J. Plant Sci. 94: 693–700. Production of faba bean cultivars with tannin-free seed on the Canadian prairies has potential for use in human food and as a feedstock for livestock and aquaculture. However, root rot is a major constraint to production. The effects of fungicide seed treatments on root rot caused by Fusarium avenaceum and Rhizoctonia solani, and the effect of inoculum density on seedling emergence, nodulation, root rot severity and yield of faba bean were examined across 12 station years from 2009 to 2011 at sites in Manitoba and Alberta. Fusarium avenaceum reduced seedling emergence more than R.solani, but both pathogens had a similar impact on seed yield. The effects of inoculum density and seed treatment were generally significant for seedling emergence, root rot severity and seed yield for both pathogens. The interaction effects of inoculum density×seed treatment for F.avenaceum and R.solani were only significant for seed yield and seedling emergence. Seedling emergence and seed yield declined with increasing inoculum level for both F. avenaceum and R.solani. Fungicidal seed treatments with Apron Maxx (fludioxonil+metalaxyl) and Vitaflo 280 (carbathiin+thiram) consistently improved emergence and seed yield in trials inoculated with F.avenaceum or R.solani. This study demonstrated that seed treatment to manage root rot of faba bean is warranted.

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Root rot disease incidence and severity on some legume species grown in Samsun and the fungi isolated from roots and soils

Cited by 8 publications

References 11 publications

Genetic Analyses and Genomic Predictions of Root Rot Resistance in Common Bean Across Trials and Populations

Genetic Analyses and Genomic Predictions of Root Rot Resistance in Common Bean Across Trials and Populations

Arbuscular mycorrhizal fungi alter antifungal potential of lemongrass essential oil against Fusarium solani, causing root rot in common bean (Phaseolus vulgaris L.)

Effects of seed treatments and inoculum density of Fusarium avenaceum and Rhizoctonia solani on seedling blight and root rot of faba bean

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